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Nicotine Competes With A Visual Stimulus For Control Of Conditioned Responding, Jennifer E. Murray, Nicole R. Wells, Rick A. Bevins
Nicotine Competes With A Visual Stimulus For Control Of Conditioned Responding, Jennifer E. Murray, Nicole R. Wells, Rick A. Bevins
Department of Psychology: Faculty Publications
Environmental stimuli that co-occur with tobacco use come to evoke drug-related conditioned responses (CRs) that appear involved in continued use of nicotine-containing products. In rats, nicotine can serve as a conditional stimulus (CS) for non-drug unconditioned stimuli (USs), prompting the question of whether the nicotine CS can compete with, or overshadow, a non-drug environmental stimulus for control of a CR. In Experiment 1, male Sprague-Dawley rats were assigned to a group [0, 0.01, 0.03, 0.045, or 0.06 mg nicotine (base)/kg/infusion]. During each session, there were 10 intravenous infusions followed by a 30-second houselight to form a compound CS. At light …